Three days after opioid billionaire John Kapoor was arrested on racketeering charges, fentanyl spray manufacturer Insys Therapeutics announced Sunday that he had resigned as a member of the company's board and also plans to move his shares into an independently-controlled trust.

John Kapoor, billionaire founder of opioid spray manufacturer Insys Therapeutics, was arrested and charged with RICO conspiracy, conspiracy to commit mail and wire fraud and conspiracy to violate the Anti-Kickback law Thursday morning in Phoenix.

Reid Hoffman is best known as the cofounder of career-focused social network LinkedIn and as a venture capital investor, but the billionaire is also putting money into social causes he's passionate about.

Mfonobong Nsehe interviews Dr. Christiaan Van Der Walt, Chief Technology Officer at MyBucks, about the brand's ambitions to offer access and financial inclusion to Africa and the under-connected and underserved around the world.

Africa’s richest woman Isabel dos Santos has failed to respond to her summons from state prosecutors to answer questions about alleged financial impropriety during her time as chairperson of Sonangol, the state oil company.